Semiconductor double quantum dot micromaser

Y. Y. Liu, J. Stehlik, C. Eichler, M. J. Gullans, J. M. Taylor, J. R. Petta

Research output: Contribution to journalArticlepeer-review

117 Scopus citations


The coherent generation of light, from masers to lasers, relies upon the specific structure of the individual emitters that lead to gain. Devices operating as lasers in the few-emitter limit provide opportunities for understanding quantum coherent phenomena, from terahertz sources to quantum communication. Here we demonstrate a maser that is driven by single-electron tunneling events. Semiconductor double quantumdots (DQDs) serve as a gain medium and are placed inside a high-quality factor microwave cavity. We verify maser action by comparing the statistics of the emitted microwave field above and below the maser threshold.

Original languageEnglish (US)
Pages (from-to)285-287
Number of pages3
Issue number6219
StatePublished - Jan 16 2015

All Science Journal Classification (ASJC) codes

  • General


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